Application: systemsettings5 (5.2.2)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-18-generic x86_64
Distribution: Ubuntu 15.04

-- Information about the crash:
- What I was doing when the application crashed: 

 I was setting a custom keyboard shortcut for "Run Command" in System Settings.

The crash does not seem to be reproducible.

-- Backtrace:
Application: System Settings (systemsettings5), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fea030a8780 (LWP 2663))]

Thread 2 (Thread 0x7fe9f2822700 (LWP 2664)):
#0  0x00007fe9ff80d8dd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007fe9fdb27b72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fe9fdb2964f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fe9f4d6d099 in QXcbEventReader::run (this=0x1331660) at qxcbconnection.cpp:1105
#4  0x00007fe9ffe8eb0e in QThreadPrivate::start (arg=0x1331660) at thread/qthread_unix.cpp:337
#5  0x00007fe9fca416aa in start_thread (arg=0x7fe9f2822700) at pthread_create.c:333
#6  0x00007fe9ff818eed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fea030a8780 (LWP 2663)):
[KCrash Handler]
#6  QString (other=<error reading variable: Cannot access memory at address 0x3ff0000000000008>, this=this@entry=0x7fff5c280b60) at ../../include/QtCore/../../src/corelib/tools/qstring.h:811
#7  QLabel::text (this=0x3ff0000000000000) at widgets/qlabel.cpp:322
#8  0x00007fea02063741 in ShortcutEditWidget::setKeySequence (this=0x1d7d630, activeSeq=...) at ../../src/kshortcuteditwidget.cpp:187
#9  0x00007fea000fd35a in call (a=0x7fff5c280cb0, r=0x7fe9fd57e550 <(anonymous namespace)::Q_QGS_s_instance::innerFunction()::holder>, this=0x217dea0) at ../../include/QtCore/../../src/corelib/kernel/qobject_impl.h:124
#10 QMetaObject::activate (sender=0x7fe9fd57e550 <(anonymous namespace)::Q_QGS_s_instance::innerFunction()::holder>, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff5c280cb0) at kernel/qobject.cpp:3702
#11 0x00007fea000fe057 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7fe9fd57da00 <KGlobalAccel::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff5c280cb0) at kernel/qobject.cpp:3582
#12 0x00007fe9fd362764 in KGlobalAccel::globalShortcutChanged (this=<optimized out>, _t1=_t1@entry=0x206d370, _t2=...) at ./moc_kglobalaccel.cpp:158
#13 0x00007fe9fd36718c in KGlobalAccelPrivate::_k_shortcutGotChanged (this=0x145ab90, actionId=..., keys=...) at ../../src/kglobalaccel.cpp:439
#14 0x00007fea000fd9c9 in QMetaObject::activate (sender=0x145aba8, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff5c280e40) at kernel/qobject.cpp:3716
#15 0x00007fea000fe057 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7fe9fd57db00 <OrgKdeKGlobalAccelInterface::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff5c280e40) at kernel/qobject.cpp:3582
#16 0x00007fe9fd370ea7 in OrgKdeKGlobalAccelInterface::yourShortcutGotChanged (this=<optimized out>, _t1=..., _t2=...) at kglobalaccel_interface.moc:263
#17 0x00007fe9fd371e35 in OrgKdeKGlobalAccelInterface::qt_static_metacall (_o=0x145aba8, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=34001776, _id@entry=0, _a=0x7fff5c281090) at kglobalaccel_interface.moc:153
#18 0x00007fe9fd374443 in OrgKdeKGlobalAccelInterface::qt_metacall (this=0x145aba8, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=0x7fff5c281090) at kglobalaccel_interface.moc:249
#19 0x00007fea031f85c7 in QDBusConnectionPrivate::deliverCall (this=0x7fff5c280b60, object=0x3ff0000000000000, msg=..., metaTypes=..., slotIdx=0) at qdbusintegrator.cpp:993
#20 0x00007fea000fe73a in QObject::event (this=0x145aba8, e=<optimized out>) at kernel/qobject.cpp:1245
#21 0x00007fea00eb8b2c in QApplicationPrivate::notify_helper (this=0x131ab10, receiver=0x145aba8, e=0x1d80f90) at kernel/qapplication.cpp:3720
#22 0x00007fea00ebe000 in QApplication::notify (this=0x7fff5c281760, receiver=0x145aba8, e=0x1d80f90) at kernel/qapplication.cpp:3503
#23 0x00007fea000ccc2b in QCoreApplication::notifyInternal (this=0x7fff5c281760, receiver=0x145aba8, event=event@entry=0x1d80f90) at kernel/qcoreapplication.cpp:935
#24 0x00007fea000cec9b in sendEvent (event=0x1d80f90, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:228
#25 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0, data=0x1319d60) at kernel/qcoreapplication.cpp:1552
#26 0x00007fea000cf298 in QCoreApplication::sendPostedEvents (receiver=receiver@entry=0x0, event_type=event_type@entry=0) at kernel/qcoreapplication.cpp:1410
#27 0x00007fea00125843 in postEventSourceDispatch (s=0x1363a00) at kernel/qeventdispatcher_glib.cpp:271
#28 0x00007fe9fc522c3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007fe9fc522f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007fe9fc522fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007fea00125c57 in QEventDispatcherGlib::processEvents (this=0x1359690, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#32 0x00007fea000ca3e2 in QEventLoop::exec (this=this@entry=0x7fff5c281640, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#33 0x00007fea000d202c in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1188
#34 0x00007fea008f331c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1510
#35 0x00007fea00eb47a5 in QApplication::exec () at kernel/qapplication.cpp:2956
#36 0x000000000040eebc in main (argc=1, argv=<optimized out>) at ../../app/main.cpp:54

Reported using DrKonqi